Journal-bearing.



I s. H. CAMPBELL.

JOU BB G.

APPLIOATIO mzn' .15 1900.

Patented .Dec. 29, 1908 3 SHEETS-SHEET I.

' Fig.1.

\ Fig.2

WITNESSES: nvmvro S. H. Ca. e11. I $771M. BY

s. H. CAMPBELL.

JOURNAL BEARING. I

99 APPLIOATION mm: In; 15,1908. Patented Dee- "29 1908.

24 if; .22 Fig.3. Fig.4.

In u

wmvsssgs; IIVl/EIVTOR I i v S. H. Campbell.

"W. wet/5m S. H. CAMPBELL.

JOURNAL BEARING. runner FILED un. 1a, 190

Patented Dec. 29, 1908. 9 SEE?- TTTTTTTT 3.

WIT/VESSES: wmvmn i M 'S. H. Campbell.

A TTOR/VEYS STERLING H. CAMPBELL, OF ST. LOUIS, MISSOURI.

JOURNAL-BEARING.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed January 15, 1908. Serial No. 410,915.

To all whom it may concern:

Be it known that I, STERLING H, CAMP- BELL, a citizen of the United States, residing at the city of St. Louis, in the State of Missouri, have invented a certain new and useful Journal-Bearing, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to journalbearings, and more particularly to that class of journal bearings which'is adapted to use in connection with railway cars, and which consists of a journal box, a brass and a wedge or key in- {gerposed between the brass and thejournal One of the objects of my invention is to provide improved means for holding the brass in position and-at the same time to so construct and arrange the parts that the brass will be interchangeable with the standard M. C. B. brass.-

Another object of my invention is to provide improved means for securing together the shell and lining of a two-part brass.

Still another object of my invention is to improve the details of construction of the brass and wedge so that the maximum strength can be secured with the minimum amount of metal and also to so form the parts as to prevent shrinkage of the same in molding.

In the accompanying drawings which illustrate a bearing made in accordance with my invention, Figure 1 is a vertical central section through the complete bearing; Fig. 2 is an enlarged cross section of the brass and wedge; Fig. 3 is a top plan view of the brass; Fig. 4 is a top plan view of the lining removed from the brass; Fig. 5 is a front elevation of the brass and wedge; Fig. 6 is a bottom plan view of the outer shell of the brass; Fig. 7 is a bottom plan view of the wedge; Fig. 8 is a cross section of the wedge and brass showing a slight modification of the brass; Fig. 9 is a top plan view of the form of brass shown in Fig. 8, and Fig. 10 is a top plan view on a reduced scale of the complete bearing the box being shown in section.

Like marks of reference refer to similar parts in the several viewsof the drawings.

15 is a journal box which is provided with the usual lid 16' and has formed on its interior face of the shell.

rior at each side, a rib or projection 17, as best shown in Fig. 10.

18 is a car axle.

All the above parts are of the standard M. O. B. type and therefore freed not be described in detail. They form no part of my invention except in combination with the other parts to be more particularly hereinafter described.

The preferred form of my brass consists of an outer shell 20, preferably of iron, and a lining 21 of any suitable bearing metal such as bronze or brass. The exterior form of the shell 20 is substantially the same as that of the standard M. C. B. brass except that its inner end is not provided with the upwardly extending flange which is usual upon the standard form of brass. The shell 20 is provided at each side with a projecting portion 22 adapted to abut against the projection 17 of the journal box. In front of these projections 22 are other projections 23 adapted to bear against the forward edge of the projection 17 and thus prevent the rearward movement of the brass. These projections 23 correspond to the similar projections on the standard form of brass but in place of having their forward ends rounded they are made square to provide bearing faces 24. for a purpose hereinafter to be more fully described.

The interior section of the shell 20 is in the form of an arc of a circle to correspond with the bearing face of the completed brass. in the interior face of the shell are formed a number of dove-tailedopenings 25, preferably six in number, as shown in Fig. 6. The lining 21 is provided with openings 26 corresponding with the openings 25 in the inte- Each of these openings 26 hasformed along its edges 2. pair of upwardly projecting prongs 27 and 28 respectively. The prongs 27 are so formed that when the lining is placed in position in the shell they will contact with the upper side walls of the dove-tailed recesses 25. The prongs 28, when the lining is placed in position, will project past the edge of the said dove-tailed recesses as shown in the left hand side of Fig. 2. After the lining is placedin position, however, these lugs 28 are bent over by any suitable tool, as shown in the right hand side of Fig. 2 so as to form a locking engagement with the recesses and thus firmly attach the lining to the shell. The shell also has preferably formed in it a number of under cut openings 29, as shown in Fig. 4. After the lining and shell have been secured together as above described, soft metal 30 is poured into the openings 29 and also into the recesses 25, extending through said recesses 25 into the recesses 26 and forming a portion of the bearing surface of the brass.

35 represents the wedge or key. This wedge or key 35 has an under face composed of a central horizontal part 36 and two inclined side parts 37. .5 ch of these inclined side parts 37 is provided with a pair of recesses 38, as shown in Figs. 7 and 8. The upper face of the wedge 35 is provided with two pairs of recesses 39 leaving a central horizontal rib 40 and a central lateral rib 41. At each side the wedge 35 is provided with projections 42 corresponding with the projections 22 of the brass. At some distance in front of the projections the said wedge is provided with a pair of downward extensions 48 adapted to come in contact with the square front ends 24 of the projections 23 of the brass, as shown in Fig. 10. he wedge 35 is also provided at its forward end with a downwardly projecting portion 44, as best shown at Figs. 5 and 7 This downwardly projecting portion 44 is adapted to contact with the front end. of the brass and form means in addition to the downward projections 43, for holding the brass against forward movement. This projection. 44 is curved substantially concentric with the axle 18 as best shown Fig. 5, so as not only to provide supplemental means for holding the brass in position, but also to form a wear guide to enable the inspector to determine when the brass is so far worn as to have reached its limit of usefulness.

In Figs. 8 and 9 I have shown a brass which differs from the one above described in being formed of but a single piece of metal; otherwise the brass is the same as that above described except that it is provided with cut away portions 45 for reducing the amount of metal. Said portions 45 correspond with the recesses 38 in the lower face of the wedge 35.

By the above construction I am enabled to use a brass which does not extend as far around the axle 18 as the standard form of M. C. B. brass. This result is obtained by the backing up of the projections 23 on the brass by the downwardly projecting portions 43 of the wedge. Owing to this backing up of the projections they need not be as thick as in the standard form of M. C. B. brass and consequently the entire weight of the brass is thus considerably reduced. At the same time it will be evident that my wedge contains all the features of the stand ard M. C. B. wedge and that the additional features added thereto do not in any way interfere with the use of the wedge on the standard M. C. B. brass and consequently i l i i i 1 my improved form of brass is interchange able with the standard form of brass. lhc construction of the parts is such as to secure the best distribution of metal, thus securing the maximum strength with the minimum amount of metal and also avoiding shrinking in the casting of the parts.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States, is:

1. In a journal bearin the combination with a journal box, of a brass having a projection adapted to engage with said box to prevent longitudinal movement of said brass, and a wedge having a projection adapted to engage with the said projection on said brass.

2. In a journal bearing, the combimuion with a journal box, of a brass having a projection adapted to engage with said box to prevent longitudinal movement of said brass, and a wedge having a projection adapted to engage with the said projection on said brass at the side opposite to that engaging with said box.

In a journal bearing, the combination with a journal box, of a brass having a projection adapted to engage with said box to prevent longitudinal movement of said brass, said projection being provided with a square forward end, and a wedge having a downwardly projecting lug engaging with the square forward end of said projection on said brass.

4. in a journal bearing, the combination with journal box, of a brass having a projection the rear end of which is adapted to engage with said box, said projection being provided with a square forward end and a wedge having a downwardly projecting lug engaging the square forward end of the projection on said brass.

5. in a journal healing, the combinalion with a journal box, of a brass having a projection adapted to engage with said box, and a wedge having a projection adapted to enwith said projection on said brass, said wedge also having a second curved projection adapted to engage with the front end of said brass and form a wear gage.

6. in a journal bearing, the combination with a journal box, of a brass having a pro jection adapted to engage with said box and provided with a square forward end, and a wedge having a downwardly projecting lug engaging with the square forward end of said projection on said brass, said wedge also having a second curved projection adapted to engage with the front end of said brass and form a wear gage.

7. ln a journal bearing, the combination with a journal box, of a brass having an upper face consisting of a horizontal center and inclined side portions, and a wedge having an under face complcmcntary to the upper face of said brass and provided with a ill) downwardly projecting portion adapted to engage with the front end of said brass, said projection being curved to form a Wear gage.

8. In a journal bearing, the combination with an outer shell having recesses in its inner face, of a lining of bearing metal provided with prongs located in and having locking engagement with said recesses, said recesses being larger than said prongs, whereby said prongs may be bent into and out of locking engagement.

9. In a journal bearing, the combination with an outer shell having recesses in its inner face, of a lining of bearing metal provided with openings and with prongs located in and having locking engagement with said recesses, and soft metal in said recesses and extending through said openings to the wearing surface of the bearing.

10. In a journal bearing, the combination inner face, of a lining of bearing metal provided with an opening and a pair of prongs, one of said prongs having locking engagement with sald recess, and soft metal in said recess and extending through said opening to the wearing surface of the bearing.

In testimony whereof I have hereunto set my hand and afiixed my seal in the presence of the two subscribing witnesses.

STERLING H. CAMPBELL. s]

Witnesses:

W. A: ALEXANDER, ELIZABETH BAILEY. 

